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Table 1 The parameters of Mascot search engine

From: A novel approach to denoising ion trap tandem mass spectra

enzyme

trypsin

fixed modifications

carbamidomethyl

variable modifications

oxidation(M)

peptide charges

+1, +2, +3

mass values

monoisotopic

protein

unrestricted

peptide mass tolerance

± 2Da

fragment mass tolerance

± 0.8Da

max.missed cleavages

1